The one important thing to consider will be the building code and permit requirements, which may require a professionally accredited architect or engineer.

Waiting for a payout after you've done all this design/permitting/etc. work upfront is dangerous without some skin in the game.    

Animals, birds, or pets of any kind shall not be permitted inside the residential unitat any time unless the prior written approval of Management has been obtained.

Do we really need to spent months and money on changing zoning, get permits, paying to architect for plans, before we actually ask contractor for cost estimation of that work?

ADU’s add value but the time it takes with permitting, worming with contractors is a pain.

Was a permit pulled and did all inspections pass.  

One indicator that supports a reduced future housing supply is the number of new construction permits issued.

She applied for her permit and was denied and is getting ready for the appeal.  

Hi everyone,I'm considering a couple options 1) getting a tiny house on wheels in the backyard -- San Jose now can officially get it permitted -- then I'll just add a bathroom and shower in my garage for family use, thinking no need to permit this. or 2) converting my garage to JADU and get it permitted. 

Get acquainted with rental properties first, permitting and construction second, and syndication last, this is something you really don't want to underestimate on or screw up halfway through, because there are fewer exit strategies.